Magnetization of GaAs quantum wires with quasi one-dimensional electron systems

2004 ◽  
Vol 22 (1-3) ◽  
pp. 729-732 ◽  
Author(s):  
M.A Wilde ◽  
J.I Springborn ◽  
Ch Heyn ◽  
D Heitmann ◽  
D Grundler
Keyword(s):  
Quantum Wires ◽  
Electron Systems ◽  
Dimensional Electron ◽  
One Dimensional

Experimental determination of spectral densities in quasi-one-dimensional electron systems

1998 ◽  
Vol 249-251 ◽  
pp. 175-179
Author(s):  
B. Kardynal ◽  
C.H.W. Barnes ◽  
E.H. Linfield ◽  
D.A. Ritchie ◽  
J.T. Nicholls ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Spectral Densities ◽  
One Dimensional

scholarly journals Realization of pristine and locally tunable one-dimensional electron systems in carbon nanotubes

2013 ◽  
Vol 8 (8) ◽  
pp. 569-574 ◽  
Author(s):  
J. Waissman ◽  
M. Honig ◽  
S. Pecker ◽  
A. Benyamini ◽  
A. Hamo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Systems ◽  
Dimensional Electron ◽  
One Dimensional

scholarly journals SPIN – A Schrödinger-Poisson Solver Including Nonparabolic Bands

VLSI Design ◽  
1998 ◽  
Vol 8 (1-4) ◽  
pp. 489-493
Author(s):  
H. Kosina ◽  
C. Troger
Keyword(s):  
Dispersion Relation ◽  
Effective Mass ◽  
Schrodinger Equation ◽  
Wave Functions ◽  
Two Dimensional ◽  
Electron Systems ◽  
Dimensional Electron ◽  
One Dimensional ◽  
Poisson Solver ◽  
Two Dimensional Electron Systems

Nonparabolicity effects in two-dimensional electron systems are quantitatively analyzed. A formalism has been developed which allows to incorporate a nonparabolic bulk dispersion relation into the Schrödinger equation. As a consequence of nonparabolicity the wave functions depend on the in-plane momentum. Each subband is parametrized by its energy, effective mass and a subband nonparabolicity coefficient. The formalism is implemented in a one-dimensional Schrödinger-Poisson solver which is applicable both to silicon inversion layers and heterostructures.

Deviations from Quantized Hall Conductivity and Current Density Distribution in Finite 2DEG Samples

1997 ◽  
Vol 11 (22) ◽  
pp. 2683-2706
Author(s):  
I. Bartoš ◽  
B. Rosenstein
Keyword(s):  
Quantum Wires ◽  
Current Density Distribution ◽  
Hall Conductivity ◽  
Recent Experimental Data ◽  
Effective Width ◽  
Electron Systems ◽  
Dimensional Electron ◽  
Kubo Formula ◽  
Finite Samples ◽  
Local Conductivity

Simple expressions for local and total Hall conductivities in finite two dimensional electron systems under magnetic field are obtained from the Kubo formula. The deviations of the Hall conductivity from integer values are always negative and their magnitude is inversely proportional to the effective width of the sample and proportional to the slope of the Landau branch dispersion relation at the Fermi level, Eq. (22). We also calculate the local conductivity in finite samples. The conductivity density is constant in the bulk and sums up to an integer value. Its spatial distribution is terminated in the bulk in a universal manner. Illustrations for simple models of the confinement barrier, as well as relation to recent experimental data for quantum wires are given.

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